公开(公告)号：US11579076B2

公开(公告)日：2023-02-14

申请号：US17217307

申请日：2021-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun Seok Moon ,  Sang Kyu Kim ,  Yoon Jae Kim ,  Jin Young Park ,  Sung Mo Ahn ,  Kun Sun Eom ,  Myoung Hoon Jung

IPC: G01N21/27 ,  G01N21/31 ,  G01N21/17

Abstract: Provided is a method of correcting an error of an optical sensor including a light source and an image sensor, the method including emitting light to a material by driving the light source, acquiring an image of the material by the image sensor, and correcting an error of a distance between the light source and the image sensor of the optical sensor based on a gradation of the acquired image of the material.